# SDL_SystemTheme System theme. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_video.h) ## Syntax ```c typedef enum SDL_SystemTheme { SDL_SYSTEM_THEME_UNKNOWN, /**< Unknown system theme */ SDL_SYSTEM_THEME_LIGHT, /**< Light colored system theme */ SDL_SYSTEM_THEME_DARK /**< Dark colored system theme */ } SDL_SystemTheme; ``` ## Version This enum is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIEnum](CategoryAPIEnum), [CategoryVideo](CategoryVideo)